Isuzu I-280, I-350 2005-06

Electronic Brake Control Module

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Removal & Installation




WARNING
When adding fluid to the brake master cylinder reservoir, use only Delco Supreme 11®, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid other than the recommended type of brake fluid, may cause contamination which could result in damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.

  1. Install clean paper and/or shop towels between the Electronic Brake Control Module (EBCM) assembly and the inner fender.
  2.  
  3. Remove the electrical connector from the EBCM.

    Click image to see an enlarged view

    Fig. Removing the electrical connector from the EBCM

  4.  
  5. Relocate the electrical connector behind the brake booster.
    NOTE
    Before removing the brake pipes from the EBCM module, clean the module and master cylinder with denatured alcohol.

  6.  
  7. Remove the brakes pipes from the master cylinder to the EBCM assembly.

    Click image to see an enlarged view

    Fig. Removing brake pipes from the master cylinder to the EBCM assembly

  8.  
  9. Remove the rear brake pipe from the retainers at the cowl.

    Click image to see an enlarged view

    Fig. Remove the rear brake pipe from the retainers at the cowl

  10.  
  11. Remove the brake pipes from the EBCM assembly.
    NOTE
    Install rubber plugs into the brake pipes to limit the loss of brake fluid and prevent contamination.

  12.  
  13. Install rubber plugs into the Brake Pressure Modulator Valve (BPMV).
    NOTE
    Install rubber plugs into the brake pipes to limit the loss of brake fluid and prevent contamination.

  14.  
  15. Install rubber plugs into the master cylinder.

    Click image to see an enlarged view

    Fig. Install rubber plugs into the master cylinder

  16.  
  17. Remove the mounting nuts from the EBCM.

    Click image to see an enlarged view

    Fig. Remove the mounting nuts from the EBCM

  18.  
  19. Remove the EBCM from the vehicle.
    WARNING
    When working with ABS module, work in a clean area and DO NOT wear gloves or use shop towels to clean the ABS unit.



    Click image to see an enlarged view

    Fig. Remove the EBCM from the vehicle

  20.  
  21. Position the EBCM module on its side.
    WARNING
    If the mounting screws for the EBCM to the BPMV cannot be removed or break in the process of removing, replace the ABS module assembly. DO NOT attempt to rethread or use heat to remove the damaged mounting screw.

  22.  
  23. Remove the 4 mounting screws from the ABS module. Discard the screws; use NEW only.

    Click image to see an enlarged view

    Fig. Remove the 4 mounting screws

  24.  
  25. Remove the 4 collars between the EBCM and the BPMV. Discard the collars; use NEW only.

    Click image to see an enlarged view

    Fig. Remove the 4 collars between the EBCM and the BPMV

  26.  
  27. Rotate the ABS module so that the BPMV is facing up.
    WARNING
    When handling the EBCM or the BPMV, use care so as not to cause any misalignment of either of the 2 electrical connectors for the EBCM or the solenoids on the BPMV.


    WARNING
    When separating the EBCM from the BPMV, DO NOT use a pry bar. If the EBCM and the BPMV cannot be separated, without the use of force, replace the ABS module as an assembly.

  28.  
  29. Separate the EBCM from the BPMV.
    WARNING
    DO NOT reuse the solenoid plate or the O-rings once the EBCM and the BPMV have been separated. Discard and use NEW only.



    Click image to see an enlarged view

    Fig. Separate the EBCM from the BPMV

  30.  
  31. Remove the solenoid plate from the EBCM. Discard the solenoid plate; use new only.
    WARNING
    DO NOT use shop towels, crocus cloth, denatured alcohol, or brake cleaner to clean the BPMV.



    Click image to see an enlarged view

    Fig. Remove the solenoid plate from the EBCM

  32.  
  33. Using a paper towel, remove foreign material from the BPMV assembly.
  34.  
  35. Using a clean paper towel, apply a small amount of DOT-3 brake fluid and clean the surface area of the BPMV.
    WARNING
    If contamination and corrosion still exist at the solenoids after cleaning, replace the BPMV assembly.

  36.  
  37. Inspect the solenoids for any contamination or corrosion.
    WARNING
    If contamination and corrosion still exist on the surface of the BPMV after cleaning, replace the BPMV assembly.

  38.  
  39. Inspect the surface of the BPMV for any contamination or corrosion.
  40.  
  41. Remove the old O-rings from the EBCM.

    Click image to see an enlarged view

    Fig. Remove the old O-rings from the EBCM

  42.  

To install:

  1. Position the NEW solenoid plate on the BPMV.
  2.  
  3. Install the new O-rings on the EBCM.
  4.  
  5. Install the BPMV to the EBCM.
  6.  
  7. Install the NEW collars in the BPMV and the EBCM.
    WARNING
    When installing the mounting screws for the EBCM to the BPMV, always finger tighten the screws before torquing to the proper torque specification.

  8.  
  9. Install the mounting screws for the EBCM. Tighten the mounting screws to 44 inch lbs. (5 Nm).
  10.  
  11. Install the ABS module to the vehicle.
  12.  
  13. Install mounting nuts for the ABS module. Tighten the mounting nuts to 80 inch lbs. (9 Nm).
  14.  
  15. Remove the rubber plugs from the brake pipes.
  16.  
  17. Remove the shipping plugs from the EBCM assembly.
    WARNING
    When installing the brake pipe fitting, always finger tighten the fitting before torquing to the proper torque specification.

  18.  
  19. Install the brakes pipes to the EBCM assembly. Tighten all the brake pipe fittings to 14 ft. lbs. (19 Nm)
  20.  
  21. Remove the rubber plugs from the master cylinder.
  22.  
  23.  Install the brake pipes from the EBCM assembly to the master cylinder. Tighten all the brake pipe fittings to 14 ft. lbs. (19 Nm).
  24.  
  25. Remove the electrical connector from the behind the brake booster.
  26.  
  27. Install the electrical connector.
  28.  
  29. Install the rear brake pipe to the retainer at the cowl.
  30.  
  31. Remove the paper and or shop towels from between the EBCM assembly and the inner fender.
  32.  
  33. Bleed the ABS brake system.
  34.  

 
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